What was found
DIVERTED DUE TO SMOKE IN THE CABIN. CHECKED RECIRC FAN, MIX MANIFOLD AND SEATS 9, 10, 11 C & D AREA FOR ANY SIGNS OF OVERHEATING OR BURNED WIRING CHECKED THESE AREAS AND ALSO APU DUCTING IN WHEEL WELL AND BEHIND SIDEWALL AND THE SEAT 9, 10 AND 11 AREA AND NO DEFECTS NOTED EXCEPT FOR GREASE FOUND ON STAINLESS STEEL DUCTING ON RIGHT SIDE OF MIX MANIFOLD. GREASE LOOKED TO BE OVERHEATED. REMOVED GREASE. ACCOMPLISHED PACK BURNOUT PROCEDURE PER MM21-00-01, NO SMELL NOTED.